What is IBM z Integrated Information Processor?

IBM® z Integrated Information Processor (zIIP) is a purpose-built processor designed to operate asynchronously with the general processors in the mainframe to help improve utilization of computing capacity and control costs. It is designed for select data and transaction processing workloads and for select network encryption workloads. zIIPs allow customers to purchase additional processing power without affecting the total million service units (MSU) rating or machine model designation. IBM does not impose IBM software charges on zIIP capacity, but charges apply when additional general purpose CP capacity is used.

Optimize resources

Assign workloads previously designated for distributed environments to the mainframe to help maximize existing computing capacity.

Reduce costs

Move eligible processes from the central processor (CP) onto zIIP to reduce software expenditures. There are no software charges for zIIP capacity, so every process you move to a zIIP saves you money.

Balance and maximize workloads

Lower the rolling 4-hour average MSUs for LPARs by assigning zIIPs to reduce charges for sub-capacity eligible IBM software products.

Products and services that exploit zIIP include:

  • Java and XML
  • IBM Db2 for z/OS
  • IBM OMEGAMON
  • IBM RMF
  • IBM z/OS Communications Server
  • IBM Global Business Services

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